Angular-Position Measuring Device

摘要

An angular-position measuring device includes a shaft rotatable relative to a body about an axis extending in a z-direction. A measuring standard having an end face is fastened on the shaft in rotatably fixed manner. The body includes a scanning device for scanning the measuring standard. Both the roller bearing and a sealing unit are provided on the side of the measuring standard facing the end face relative to the z-direction, The sealing unit includes rings that are rotatable relative to each other and are separated from each other by a gap, the gap being filled at least partially with a fluid.

主权项

1. An angular-position measuring device, comprising:
a body; a roller bearing; a shaft rotatable relative to the body, the roller bearing, about an axis extending in a z-direction; and a measuring standard, having an end face, fastened on the shaft in rotatably fixed manner; wherein the body includes a scanning device adapted to scan the measuring standard; wherein both the roller bearing and a sealing unit are arranged on a side of the measuring standard that faces the end face relative to the z-direction; and wherein the sealing unit includes rings rotatable relative to each other and separated from each other by a gap, the gap being at least partially filled with a fluid.